NCS v3.1.0 BLE Packets being fragmented to 27 bytes regardless of MTU. Data len update configs crash device on connection.https://devzone.nordicsemi.com/f/nordic-q-a/124153/ncs-v3-1-0-ble-packets-being-fragmented-to-27-bytes-regardless-of-mtu-data-len-update-configs-crash-device-on-connectionI am using a custom nRF52832 board with NCS v3.1.0 with the following BT configs: # Enable Bluetooth CONFIG_BT=y CONFIG_BT_PERIPHERAL=y CONFIG_BT_GATT_CLIENT=y CONFIG_BT_DEVICE_NAME_DYNAMIC=y CONFIG_BT_PHY_UPDATE=y CONFIG_BT_USER_PHY_UPDATE=y CONFIG_BT_SMPen-USTelligent Community 13Thu, 04 Sep 2025 19:58:37 GMTRE: NCS v3.1.0 BLE Packets being fragmented to 27 bytes regardless of MTU. Data len update configs crash device on connection.https://devzone.nordicsemi.com/thread/547812?ContentTypeID=1Thu, 04 Sep 2025 19:58:37 GMT137ad170-7792-4731-bb38-c0d22fbe4515:1fc66c81-b97f-44d1-8e23-4228289077a0Amua-Charlie<p><span>CONFIG_BT_CTLR_DATA_LENGTH_MAX=251 was the fix, thank you very much.</span></p><div style="clear:both;"></div>RE: NCS v3.1.0 BLE Packets being fragmented to 27 bytes regardless of MTU. Data len update configs crash device on connection.https://devzone.nordicsemi.com/thread/547761?ContentTypeID=1Thu, 04 Sep 2025 13:02:24 GMT137ad170-7792-4731-bb38-c0d22fbe4515:fd3318e6-87ae-472b-be3a-ac95e5fe0ff6Sigurd<p>Hi</p> <p>Try setting</p> <p>CONFIG_BT_CTLR_DATA_LENGTH_MAX=251</p> <p>Also, try delay calling&nbsp;<span>bt_conn_le_data_len_update()&nbsp;</span></p><div style="clear:both;"></div>